| Country | Action | Action Date | Effective Date |
|---|---|---|---|
| All Territories under UK Sovereignty | |||
| BOSNIA AND HERZEGOVINA | Succession | 01/10/1997 | |
| CROATIA | |||
| KOSOVO | Succession | 21/10/2009 | |
| MONTENEGRO | |||
| SERBIA | |||
| SERBIA AND MONTENEGRO | |||
| SLOVENIA | Succession | 25/06/1991 | 25/06/1991 |
| UNITED KINGDOM | Signature | 21/04/1965 | |
| YUGOSLAVIA | Signature | 21/04/1965 |